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Zorluk: ZorPhysiological Adaptation

A nurse is caring for a 68-year-old client admitted 12 hours ago with acute pyelonephritis. The client is currently restless, and the nurse notes their skin is abnormally warm and flushed. Assessment reveals a urine output of 15 mL/hr over the past two hours. Vital signs are:

* Blood pressure: 86/42 mmHg
* Heart rate: 124 bpm
* Respiratory rate: 28 breaths/min
* Temperature: 39.1°C (102.4°F)

An arterial blood gas (ABG) analysis on room air shows: pH 7.31, PaCO2 29 mmHg, HCO3- 14 mEq/L, and PaO2 86 mmHg. Which of the following actions should the nurse perform FIRST?

  1. Initiate a rapid intravenous infusion of an isotonic crystalloid solutionCevap
  2. B
    Prepare to administer a continuous intravenous infusion of norepinephrine
  3. C
    Apply high-flow oxygen via a non-rebreather mask to correct the tachypnea
  4. D
    Notify the healthcare provider to request an immediate change in the antibiotic regimen

Cevap

The nurse should first initiate a rapid intravenous infusion of an isotonic crystalloid solution.
Initiating a rapid intravenous infusion of an isotonic crystalloid solution is the highest priority because the client is in the early 'warm' phase of septic shock. This phase of distributive shock is characterized by massive systemic vasodilation, resulting in relative hypovolemia, warm/flushed skin, hypotension, and inadequate tissue perfusion (evidenced by oliguria and lactic acidosis). The ABG confirms metabolic acidosis with compensatory tachypnea. According to evidence-based sepsis management guidelines, the most critical initial action for sepsis-induced hypoperfusion is aggressive fluid resuscitation to restore intravascular volume and improve oxygen delivery to tissues.

Adım Adım Çözüm

1
Analyze the client's clinical presentation.
The combination of severe hypotension, tachycardia, oliguria, and warm/flushed skin in a client with an active pyelonephritis infection indicates the early (hyperdynamic) phase of distributive septic shock.
Recognizing the specific phase and type of shock is required to determine the correct pathophysiological intervention.
2
Interpret the arterial blood gas (ABG) values.
The ABG reveals a partially compensated metabolic acidosis (low pH, low HCO3-) caused by tissue hypoperfusion (lactic acidosis). The PaO2 is normal, indicating the tachypnea is a compensatory respiratory response, not hypoxia.
Misinterpreting the tachypnea and ABG can lead to prioritizing oxygen therapy over critical fluid resuscitation.
3
Determine the highest priority intervention.
The immediate priority for sepsis-induced relative hypovolemia and tissue hypoperfusion is rapid volume expansion with isotonic crystalloids.
Restoring intravascular volume is a critical prerequisite before administering vasopressors to prevent worsening tissue ischemia.

Anahtar Kavram

Prioritization in Septic Shock Management and Hemodynamic Resuscitation
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Konular

Physiological Adaptation

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